2662255421 has 4 divisors (see below), whose sum is σ = 3042577632. Its totient is φ = 2281933212.

The previous prime is 2662255381. The next prime is 2662255483. The reversal of 2662255421 is 1245522662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1245522662 = 2 ⋅622761331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2662255421 is a prime.

It is a super-4 number, since 4×2662255421⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662255621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190161095 + ... + 190161108.

It is an arithmetic number, because the mean of its divisors is an integer number (760644408).

Almost surely, 2^2662255421 is an apocalyptic number.

It is an amenable number.

2662255421 is a deficient number, since it is larger than the sum of its proper divisors (380322211).

2662255421 is an equidigital number, since it uses as much as digits as its factorization.

2662255421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380322210.

The product of its digits is 57600, while the sum is 35.

The square root of 2662255421 is about 51597.0485686924. The cubic root of 2662255421 is about 1385.9574799536.

The spelling of 2662255421 in words is "two billion, six hundred sixty-two million, two hundred fifty-five thousand, four hundred twenty-one".